Zion is a huge underground city with multiple levels. It’s the last remaining human stronghold standing against the machine army. The machines found a way into the Zion city more and more are coming to destroy it.

The army of sentient Machines has infiltrated the last human stronghold of Zion and is trying to destroy the power generators to disable its defenses. Build units and send them to fight off the invading Machines. Build various turrets in key points of the map to gain tactical advantage. Every wave of enemies is a puzzle you have to solve using tactics and big guns! Attack, fall back or stand your ground – unlike most TD games – the control of the battlefield is all yours. Rack up bonus points by maintaining a kill streak combo – destroy enemy units and don’t let them destroy yours. Compete with your friends and players around the world on the leaderboards. Unlock 18 achievements of “Zion Tower Defense” for a total of 1000 points.